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Interchange Project at US 31 and 236th Street

Project Overview

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The proposed project will include the construction of an interchange at US 31 and 236th Street. The project will grade separate 236th Street over US 31 in a tight diamond configuration. US 31 will remain at the same elevation. The ramp terminals will be single-lane roundabouts with single lane exits. The proposed project will provide free flow operations for US 31 through the corridor and will maintain corridor consistency with most other interchanges on US 31 in Hamilton County, providing driver familiarity.

The project has minimized other impacts to the extent practicable, including right of way, wetlands, streams, floodplains, Section 4(f) and cultural resources. The EA documents project impacts – including public and agency involvement – and documents any mitigation commitments for the project.

The tentative timeline for this project moving forward is:

  • Environmental Study is Complete – May 2021
  • Right-of-Way Acquisition – October 2020 to October 2021
  • Contract Letting – July 2021
  • Construction – August 2021 to July 2023

Finding of No Significant Impact (FONSI)


On June 9, 2021, the Federal Highway Administration (FHWA) issued a Finding of No Significant Impact (FONSI) for the Interchange Project at U.S. 31 and 236th Street. The FHWA has determined that this project, as identified in the Environmental Assessment and supplemental project information, will have no significant impact on the natural and human environment. Copies of the FONSI and other project documents are provided below.

Public Hearing and Virtual Public Meeting

INDOT held a virtual public information meeting on March 25, 2021 and an in-person public hearing was held on March 30, 2021 for a proposed new interchange on US 31 at 236th Street in Hamilton County, Indiana. Information from the public meeting is provided below.

Contact Information

Adam Burns, project manager
Crawford, Murphy & Tilly
317-492-9159
US31interchange@cmtengr.com

INDOT4U Customer Service
INDOT@indot.in.gov
855-INDOT4U (463-6848)
INDOT4U.com

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